Move commonly used API systems to a plugin based system

Create a class that implements IBloodMagicPlugin and annotate it with
`@BloodMagicPlugin`. The `register` method will be called during init.

Currently implemented systems:
- Blacklisting
  - Teleposer
  - Teleposer (entity)
  - Transposition
  - Well of Suffering
  - Green Grove
- Setting sacrificial values
- Adding altar components

src/main/java/WayofTime/bloodmagic/compat/jei/armourDowngrade/ArmourDowngradeRecipeJEI.java

@@ -8,7 +8,7 @@ import mezz.jei.api.recipe.BlankRecipeWrapper;
 import net.minecraft.item.ItemStack;
 import WayofTime.bloodmagic.api.recipe.LivingArmourDowngradeRecipe;
 import WayofTime.bloodmagic.api.util.helper.ItemHelper.LivingUpgrades;
-import WayofTime.bloodmagic.registry.RegistrarBloodMagicItems;
+import WayofTime.bloodmagic.core.RegistrarBloodMagicItems;
 
 import java.util.List;